#USING TRANSCAD TO UTD MODELING DRIVER#
For example, a driver may want to drive home directly from the last stop of the day instead of returning to the depot. This is often referred as an open-ended route instead of a closed tour. In other words, the route does not contain the return trip from the last stop to the depot. A route does not need to end at the depot.A stop may require either a pickup, a delivery, or both services. A vehicle route may contain mixed pickup and delivery stops, where the pickups and deliveries do not need to correspond to each other.Backhaul stops can only be visited after all delivery stops are visited in a route. For example, vehicles may need to pick up empty containers at the end of their delivery trip.
#USING TRANSCAD TO UTD MODELING FULL#
For example, when delivering take-out food, it may be desirable that the full route length is not more than an hour. There is a time restriction on total route length, or route duration.In most cases, each stop has a fixed service time that is independent of demand. Each stop requires a certain amount of time to service.This type of restriction is also known as a time window. There are time restrictions at the warehouse.This type of restriction is known as a time window. There are time restrictions on when deliveries can be make to some or all of the stores.This kind of a problem is known as a multiple-depot problem. There are more than one warehouse location, and stores can be serviced by trucks from any one of these warehouses.The list below shows some common situations that are easily handled by TransCAD: There are many factors that can make a vehicle routing problem more complex.The travel times or distances are stored in the vehicle routing matrix. The goal of the procedure is to obtain a set of routes that minimizes the total time or distance traveled by the entire fleet of vehicles.A vehicle route starts at a depot, visits one or more stops, and may or may not return to the depot. The starting points for each route ( such as the warehouse) are known as depots, and the points to be visited are known as stops.
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